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Sender Policy Framework

History of SPF vs Sender ID


Revision 35 . . 2012-09-12 19:31 (UTC) by Scott Kitterman [Indicated SenderID is obsolete.]
Revision 34 . . (edit) 2007-06-11 23:01 (UTC) by Julian Mehnle
Revision 33 . . (edit) 2007-01-05 18:50 (UTC) by Scott Kitterman
Revision 32 . . (edit) 2006-11-13 0:50 (UTC) by Julian Mehnle [linkified initial uses of the terms "SPF" and "Sender ID" to the green boxes]
Revision 31 . . (edit) 2006-11-01 11:29 (UTC) by Julian Mehnle
Revision 30 . . 2006-10-25 12:31 (UTC) by Julian Mehnle [updated link to SPF community position]
Revision 29 . . 2006-05-25 13:29 (UTC) by Julian Mehnle ["Real world consequences" should not merely be a sidenote]
Revision 28 . . (edit) 2006-05-25 13:25 (UTC) by Julian Mehnle
Revision 27 . . 2006-05-24 21:31 (UTC) by Stuart Gathman [* remove "gratuitous" judgement]
Revision 26 . . 2006-05-24 19:37 (UTC) by Stuart Gathman [*Executive summary]
Revision 25 . . 2006-05-22 20:55 (UTC) by Stuart Gathman [*Is SID SPF2?]
Revision 24 . . (edit) 2006-05-20 19:40 (UTC) by Stuart Gathman [*Side bar formatting]
Revision 23 . . (edit) 2006-05-14 13:51 (UTC) by Julian Mehnle
Revision 22 . . (edit) 2006-05-14 13:50 (UTC) by Julian Mehnle
Revision 21 . . (edit) 2006-05-14 13:49 (UTC) by Julian Mehnle
Revision 20 . . (edit) 2006-05-12 3:26 (UTC) by Julian Mehnle
Revision 19 . . (edit) 2006-05-12 3:15 (UTC) by Stuart Gathman
Revision 18 . . 2006-05-12 3:10 (UTC) by Stuart Gathman
Revision 17 . . (edit) 2006-05-12 3:05 (UTC) by Julian Mehnle
Revision 16 . . (edit) 2006-05-12 2:58 (UTC) by Julian Mehnle [made page public, really!]
Revision 15 . . 2006-05-12 2:49 (UTC) by Julian Mehnle [made page public; slight improvements]
Revision 14 . . 2006-05-11 23:29 (UTC) by Stuart Gathman [*More work arounds for Sender-ID brain damage]
Revision 13 . . (edit) 2006-05-11 20:38 (UTC) by Stuart Gathman
Revision 12 . . (edit) 2006-05-11 20:37 (UTC) by Stuart Gathman
Revision 11 . . 2006-05-11 20:36 (UTC) by Stuart Gathman
Revision 10 . . 2006-05-11 19:44 (UTC) by Stuart Gathman
Revision 9 . . 2006-05-11 19:41 (UTC) by Stuart Gathman
Revision 8 . . 2006-05-11 19:40 (UTC) by Stuart Gathman
Revision 7 . . 2006-05-11 19:36 (UTC) by Stuart Gathman
Revision 6 . . 2006-05-11 19:33 (UTC) by Stuart Gathman
Revision 5 . . 2006-05-11 19:32 (UTC) by Stuart Gathman
Revision 4 . . 2006-05-11 19:30 (UTC) by Stuart Gathman
Revision 3 . . 2006-05-11 19:26 (UTC) by Stuart Gathman
Revision 2 . . 2006-05-11 19:19 (UTC) by Stuart Gathman
Revision 1 . . 2006-05-11 19:02 (UTC) by Stuart Gathman
  
Difference (from prior major revision) (no other diffs)
Paragraph 3Paragraph 3

''[[#what-is-spf|SPF]]'' and ''[[#what-is-sender-id|Sender ID]]'' are not the same.  They differ in ''what'' they validate and what "layer" of the e-mail system they are concerned with.  ''Sender ID'' is not the latest version of ''SPF'' -- it is a new and independent experiment.  The "<code>spf2.0</code>" tag name is a historical accident.  Neither is better because they address different problems.  There is controversy because ''Sender ID'' is incompatible with existing specifications. ''Microsoft'' is aware of the problem and representatives of theirs have stated that they have no plans to fix it.  There are practical work-arounds for ''SPF'' and ''Sender ID'' users.

''[[#what-is-spf|SPF]]'' and ''[[#what-is-sender-id|Sender ID]]'' are not the same.  They differ in ''what'' they validate and what "layer" of the e-mail system they are concerned with.  ''Sender ID'' is not the latest version of ''SPF'' -- it is a obsolete and independent experiment.  The "<code>spf2.0</code>" tag name is a historical accident.  Neither is better because they address different problems.  There is controversy because ''Sender ID'' is incompatible with existing specifications. ''Microsoft'' is aware of the problem and representatives of theirs have stated that they have no plans to fix it.  There are practical work-arounds for ''SPF'' and ''Sender ID'' users.

Paragraph 16Paragraph 16

The tag for ''SPF'' records is "<u><code>v=spf1</code></u>".  It is defined by RFC 4408 to apply to the <tt>MAIL FROM</tt> and <tt>HELO</tt> identities only.  The tag for ''Sender ID'' records can be "<u><code>spf2.0/pra</code></u>", "<u><code>spf2.0/mfrom</code></u>", or "<u><code>spf2.0/mfrom,pra</code></u>", depending on which identities the policy applies to.  Nevertheless, ''Sender ID'' is not the latest version of ''SPF'' --- it is a new and independent protocol.  The tag name is a historical accident and was assigned by the failed [[Wikipedia:MARID|''MARID'' IETF working group]].

The tag for ''SPF'' records is "<u><code>v=spf1</code></u>".  It is defined by RFC 4408 to apply to the <tt>MAIL FROM</tt> and <tt>HELO</tt> identities only.  The tag for ''Sender ID'' records can be "<u><code>spf2.0/pra</code></u>", "<u><code>spf2.0/mfrom</code></u>", or "<u><code>spf2.0/mfrom,pra</code></u>", depending on which identities the policy applies to.  Nevertheless, ''Sender ID'' is not the latest version of ''SPF'' --- it is a obsolete and independent protocol.  The tag name is a historical accident and was assigned by the failed [[Wikipedia:MARID|''MARID'' IETF working group]].